import java.util.*;

public class Plate extends MyElement{
    private ArrayList list = new ArrayList();
    public void add(MyElement element) {
        list.add(element);
    }

    public void delete(MyElement element) {
        list.remove(element);
    }

    public void eat() {
        for(Object object:list) {
            ((MyElement)object).eat();
        }
    }
}